Home / 656,383.60-905,977.91-427,511.22

Finding the Fourth Proportional to 656,383.60, 905,977.91 and 427,511.22

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Solution

The fourth proportional to 656,383.60, 905,977.91 and 427,511.22 is: 590,075.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,383.60 : 905,977.91 = 427,511.22 : x
  2. Step 2: Convert to fraction form
    656,383.60/905,977.91 = 427,511.22/x
  3. Step 3: Cross multiply
    656,383.60x = 905,977.91 × 427,511.22
  4. Step 4: Simplify right side
    656,383.60x = 387,315,721,597.15
  5. Step 5: Solve for x
    x = 387,315,721,597.15/656,383.60
  6. Step 6: Final answer
    x = 590,075.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.